SIG-Network Intro & Deep-Dive
Talkat KubeCon + CloudNativeCon North America 2019 · on Thursday, 2019-11-21· at 10:55· Room 33ABC - San Diego Convention Center, Upper Level·
summary
Kubernetes networking primer then deep dive into recent work: CNI + NetworkPolicy behavior, Services/Endpoints and kube-proxy internals, and a new endpoint slices API that shards endpoints (address types, per-endpoint conditions, topology) to cut kube-proxy CPU and bandwidth at large scale — tests show ~20x improvement at thousands of endpoints after three proxy fixes (sorting, cache-on-demand, skip stale checks). Alpha dual stack (podIPs list, service IPFamily), Service Topology and SCTP landed as alphas/betas; feature gates require testing and migration effort.
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chapters (17)
- 0:00Start
- 3:07Network Policy - Deny All Ingress
- 21:04iptables
- 28:01Upcoming
- 31:46Endpoint Slice: Inspiration
- 35:21Endpoint Slice Differences
- 37:14Endpoint Slice Performance
- 44:41Endpoint Slice Timeline
- 46:12Evolving Landscape for L4/L7
- 49:40Service/ingress Evolution
- 51:13Gateway/Route schema
- 55:07Dual Stack: Goals
- 56:08Dual Stack: Complexity
- 56:46Dual Stack: Alpha
- 57:40Dual Stack: In Practice
- 58:45Dual Stack: Kube Proxy
- 59:43Dual Stack: Timeline
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